/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package Controlers.Admin;

import Pojos.ThanhVien;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

/**
 *
 * @author ToanNhan
 */
@WebServlet(name = "XemDanhSachThanhVienControler", urlPatterns = {"/XemDanhSachThanhVienControler"})
public class XemDanhSachThanhVienControler extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try {
            String command = request.getParameter("command");
            if (command == null || command.length() == 0) {
                response.sendRedirect("/WebsiteBanHang/Admin/XemDanhSachThanhVien.jsp");
            } else {
                command = command.toLowerCase();
                if (command.compareTo("laydanhsachthanhvien") == 0) {
                    layDanhSachThanhVien(request, response);
                }
                if (command.compareTo("editmember") == 0) {
                    String userName = request.getParameter("chk");
                    if (userName != null) {
                        response.sendRedirect("/WebsiteBanHang/Admin/CapNhatThongTinThanhVien.jsp?userName=" + userName);
                    }
                }
                if (command.compareTo("blockmember") == 0) {
                    blockMember(request, response);
                }
                if (command.compareTo("unblockmember") == 0) {
                    unblockMember(request, response);
                }
            }
        } finally {
        }
    }

    protected void blockMember(HttpServletRequest request, HttpServletResponse response) throws IOException {
        String userNames[] = request.getParameterValues("chk");
        if (userNames != null && userNames.length > 0) {
            SessionFactory factory = new Configuration().configure("Pojos/hibernate.cfg.xml").buildSessionFactory();
            Session session = factory.openSession();
            Query query = session.createQuery("From ThanhVien");
            List<ThanhVien> lstThanhVien = query.list();
            session.beginTransaction();
            for (ThanhVien tv : lstThanhVien) {
                for (String userName : userNames) {
                    if (tv.getUserName().compareTo(userName) == 0) {
                        tv.setTinhTrang(ThanhVien.BLOCK_THANHVIEN);
                        session.save(tv);
                    }
                }
            }
            request.setAttribute("danhSachThanhVien", lstThanhVien);
            session.getTransaction().commit();
            session.close();
        }
        response.sendRedirect("/WebsiteBanHang/Admin/XemDanhSachThanhVien.jsp");
    }

    protected void unblockMember(HttpServletRequest request, HttpServletResponse response) throws IOException {
        String userNames[] = request.getParameterValues("chk");
        if (userNames != null && userNames.length > 0) {
            SessionFactory factory = new Configuration().configure("Pojos/hibernate.cfg.xml").buildSessionFactory();
            Session session = factory.openSession();
            Query query = session.createQuery("From ThanhVien");
            List<ThanhVien> lstThanhVien = query.list();
            session.beginTransaction();
            for (ThanhVien tv : lstThanhVien) {
                for (String userName : userNames) {
                    if (tv.getUserName().compareTo(userName) == 0) {
                        tv.setTinhTrang(ThanhVien.UNBLOCK_THANHVIEN);
                        session.save(tv);
                    }
                }
            }
            request.setAttribute("danhSachThanhVien", lstThanhVien);
            session.getTransaction().commit();
            session.close();
        }
        response.sendRedirect("/WebsiteBanHang/Admin/XemDanhSachThanhVien.jsp");
    }

    protected void layDanhSachThanhVien(HttpServletRequest request, HttpServletResponse response) {
        try {
            int trangThu = 0;
            if (request.getParameter("trangThu") != null) {
                trangThu = Integer.valueOf(request.getParameter("trangThu")) - 1;
            }
            int soLuongTrenTrang = 20;
            if (request.getParameter("soLuongTrenTrang") != null) {
                soLuongTrenTrang = Integer.valueOf(request.getParameter("soLuongTrenTrang"));
            }
            int from = trangThu * soLuongTrenTrang;
            int to = from + soLuongTrenTrang - 1;
            SessionFactory factory = new Configuration().configure("Pojos/hibernate.cfg.xml").buildSessionFactory();
            Session session = factory.openSession();
            Query query = session.createQuery("From ThanhVien");
            List<ThanhVien> lstThanhVien = query.list();
            if (lstThanhVien.size() < to) {
                lstThanhVien = lstThanhVien.subList(from, lstThanhVien.size());
            } else {
                lstThanhVien = lstThanhVien.subList(from, to);
            }
            request.setAttribute("danhSachThanhVien", lstThanhVien);
            session.close();
            request.getRequestDispatcher("Admin/XemDanhSachThanhVien.jsp").forward(request, response);
        } catch (ServletException ex) {
            Logger.getLogger(XemDanhSachThanhVienControler.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(XemDanhSachThanhVienControler.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">

    /**
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
